Loom shuttle



H. E. GOFF LOOM SHUTTLE I Dec. 31, 1940.

Filed April 15, 1940 awn mi the member l5.

Patented Dec. 31, 1940 LOOM SHUTTLE I Harold E. Goff, Millbury, Mass, assignorito Wat-f son-Williams Manufacturing Company; Millbury, Mass, a corporation of Massachusetts Application April 15, 1940, Serial No. 329,694

2 Claims. (o1. 1s9--2os) This invention relates to loom shuttles of the type in which a bobbin is mounted on a spindle pivoted in the shuttle body and yieldingly held in either loading or running position.

It is the general object of my invention to provide an improved and simplified construction in shuttles of the defined type, to the end that economy in manufacture and reliability in operation may be satisfactorily attained.

A more specific object of the invention relates to the provision of improved means for preventing a bobbin from shifting axially of a spindle during loom operation. I also provide improved means for defining the running position of the bobbin on the spindle.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawing, in which Fig. 1 is a partial plan view of a shuttle embodying my improvements;

Fig. 2 is a sectional side elevation, taken along the line 2-2 in Fig. 1;

Figs. 3 and 4 are detail sectional side elevations, showing certain parts appearing in Fig. 2 but in different operative relations;

Fig. 5 is a side elevation of a bobbin guiding and holding member;

Fig. 6 is a plan view thereof; and

Fig. 7 is an end elevation thereof.

Referring to the drawing, I have shown a portion of a shuttle body S having its inner portion cut away as indicated at to receive a bobbin B mounted on and supported by a spindle I2.

A combined guiding and holding member I is secured in a recess IS in the shuttle body S and is held in place by a pin I! and a screw 18, which holding parts pass through aligned transverse holes l9 and 20 (Fig. 5) in the body S and member l5.

The spindle I2 has a head 22 of such width as to fit snugly between the upright sides 24 of The head 22 is also provided with a notch or recess 25 which may be hooked over the screw l8 to form ,a pivot for the spindle l2.

A spring plate 33 is positioned in a relatively shallow recess 34 in the shuttle body S and is tensioned and drawn downward by a screw 35 which is threaded in a nut 35 inserted in a recess 31 in the bottom of the shuttle.

Engagement of the spring 33 with a corner lug 38 on the spindle head 22 holds the spindle l2 yieldingly in the raised loading position shown in Fig. 3 or in the lowered running position shown in Fig. 4. It will be noted thatin the raised position the corner lug 38 is at one side of the vertical plane of the pivot screw l8, while 5 in the running position shown in Fig. 4 the corner lug. 38 is well to the right of the vertical plane through the screw I8. When in lowered position, a projection 40 of the spindle head 22 engages the pin I! and thus determines the exact running position of the spindle.

The bobbin guiding and holding member is provided, in addition to the side portions 24, with an end or holding portion 44 having a substantially semi-circular recess 45 in its upper edge. 15 The front corners of the side portions 24 are also formed in cam surfaces as indicated at 41, for a purpose to be now described.

With the spindle [2 in the raised position shown in Figs. 2 and 3, a bobbin B may be placed on the spindle as shown in Fig. 2 and may be forced downward until the flange 50 at the base of the bobbin engages the curved cam surfaces 41 on the member 15, which surfaces then form a stop or abutment and determine the inmost position of the bobbin..

As the spindle I2 is then swung down to the position shown in Fig. 4, the flange'50 remains in engagement with the'surfaces 41 and is guided thereby into the opening 52 between the ends of the side portions 24 and. the end portion 44 of the member l5.

When the spindle has been moved down to running position, as indicated in Fig. 4, the flange 50 is seated snugly in the recess 52. Axial displacement of the bobbin B on the spindle I2 is thus effectively prevented.

It will be noted that the member 15 may be formed from a single piece of metal by simple press and punch operations, and that the cam surfaces 4'! make it unnecessary to provide a flange or shoulder on the spindle l2 to act as a stop for the bobbin B, as has been the usual prior practice.

Having thus descried my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. For use with a loom shuttle having a pivoted spindle adapted to receive a flanged bob- 5O bin; a bobbin holding member formed from a single blank of sheet material and comprising a bottom portion, upturned side walls integral with the bottom portion between which the spindle is adapted to be pivotally mounted, and 55 15 bottom portion, spaced side portions joined to-.

position to the running position.

2. In a loom shuttle having a pivoted spindle supporting a bobbin with a flanged end, in combination, a bobbin-holding member having a gether by said bottom portion and between which side portions said spindle is mounted, said bottom portion having a forwardly and upward- 1y projected forked and recessed end portion spaced from the front edges of said side portions, and means to secure said holding member and spindle in said shuttle, the front edges of said side portions each having a cam face and said edges being effective to engage and limit inward movement of a bobbin on the spindle, and said forked and recessed end portion engaging the outer face of the flange on said bobbin and preventing outward movement of the bobbin on said spindle.

HAROLD E. GOFF. 

